A sliding picture puzzle - restore the image one move at a time.
Jigsaw Slide Master rebuilds the charm of the classic fifteen-puzzle in a compact 3x3 form. The picture is scrambled across eight tiles and one gap; slide tiles into the gap until the image is whole again.
Every shuffle is verified to be solvable, so a solution always exists. The image is a colorful gradient mosaic generated fresh each game - plus a number mode if you prefer the pure logic version.
Yes - the shuffler only makes legal moves backward from the solved state, so no impossible layouts exist.
3x3 is the sweet spot for browser play; a 4x4 expert mode is planned.
The counter under the board increments on every tile slide.